CN-121992550-A - Thermal-wet-swelling yarn for thermal management and production method of fabric of thermal-wet-swelling yarn

CN121992550ACN 121992550 ACN121992550 ACN 121992550ACN-121992550-A

Abstract

The invention discloses a thermal-wet-swelling yarn for thermal management and a production method of a fabric thereof, belonging to the field of functional textile materials. The yarn is spun by taking the gradient shrinkage polyester slub yarn as a core yarn and the acrylic staple fiber as an outer cladding material through jet vortex. After the fabric is subjected to hot and wet excitation, the core yarn is axially contracted and radially expanded, and the outer acrylic fiber is synchronously physically contracted. The bidirectional synergetic contraction of the inner and outer fibers generates strong centripetal extrusion force, a high-density fitting locking area is constructed, and the tail ends of the fibers which are easy to pill are firmly buckled in the yarn framework. Compared with the prior art, the invention effectively blocks hairiness slipping from a physical structure, reduces the gap of the fabric while obviously improving the fuzzing and pilling resistance of the fabric, fully reserves a static air layer, realizes the synergistic effect of excellent heat preservation and pilling resistance, has excellent process compatibility, and is very suitable for large-scale mass production.

Inventors

Fu chiyu
XU WEILIN
LI HAILONG
TANG LONGSHI
CHAI WENLIN
ZHANG SHICHENG
TANG YUFEI
CHEN SHUANGTING
TANG WENYANG
XIA ZHIGANG

Assignees

武汉纺织大学
吴江京奕特种纤维有限公司
杭州青源盛纺织科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260324

Claims (10)

1. A method for producing a heat-moisture-swelling yarn for thermal management, characterized by comprising the steps of: step 1, selecting textile short fibers as an outer cladding raw material, and sequentially carrying out processes of opening and picking, carding and drawing to obtain cooked strips; and 2, taking the gradual-change shrinkage polyester slub yarn as a core yarn, introducing the core yarn into a front roller jaw through a yarn guide hook, and simultaneously feeding the cooked yarn prepared in the step 1, and performing core spun yarn by ring spinning or vortex spinning to obtain the thermal-wet expansion yarn for thermal management.
2. A method of producing a thermally moisture-swellable yarn for thermal management as set forth in claim 1, characterized by comprising the steps of: step 1, selecting textile short fibers as an outer cladding raw material, and sequentially carrying out processes of opening and picking, carding and drawing to obtain cooked strips, wherein the gram weight is 12-25g/5 m; And 2, taking the gradual-change shrinkage polyester slub yarn as a core yarn, arranging the core yarn in a core yarn unwinding device of an air jet vortex spinning machine, introducing the core yarn into a front roller jaw through a yarn guide hook, feeding the drawn fiber strand prepared in the step 1 into a drawing mechanism, converging the drawn fiber strand and the core yarn before entering a vortex nozzle by a front roller, and adjusting working parameters of the air jet vortex spinning machine to obtain the thermal-wet expansion yarn for thermal management.
3. The method for producing a thermal wet textured yarn for thermal management according to claim 1 or 2, wherein the textile staple fiber is at least one of acrylic staple fiber, cotton staple fiber, polyester staple fiber, and viscose staple fiber.
4. The method for producing a heat-moisture-swelling yarn for thermal management according to claim 1 or 2, wherein the spun staple fiber is an acrylic staple fiber.
5. The method for producing a thermally wet textured yarn for thermal management according to claim 1 or 2, wherein the working parameters of the vortex spinning are controlled to be 0.4 to 0.5MPa in air pressure of the spinning nozzle, 1.8 to 3.2cN in untwisting tension of the core yarn, and 300 to 380m/min in spinning speed.
6. The method for producing a thermally wet textured yarn for thermal management according to claim 1 or 2, wherein the working parameters of the vortex spinning are controlled to be 0.42MPa in air pressure of the spinning nozzle, 2.5cN in unwinding tension of the core yarn, and 340m/min in spinning speed.
7. The method for producing a heat-moisture-swelling yarn for thermal management according to claim 1 or 2, wherein the mass ratio of the core yarn to the sheath staple fiber in the heat-moisture-swelling yarn is 0.8-1.2:0.8-1.5.
8. A method of producing a fabric for thermal management of a thermally moisture-swellable yarn according to any one of claims 1-7, characterized by the following steps: The method comprises the steps of firstly processing the hot-wet bulked yarn meridian tube and the warping process, then weaving the hot-wet bulked yarn meridian tube and the warping process, and after weaving, carrying out a hot-wet processing process on the grey cloth, wherein the hot-wet processing process is that the fabric passes through a steam box in an open width state, continuously passes through the steam box for 80-150 seconds under the conditions of 78-108 ℃ and 80-99% of relative humidity and the running speed of 20-30m/min, and then is dried for 60-120 seconds at 80-100 ℃ to obtain the hot-wet bulked yarn fabric.
9. The method of claim 8, wherein the method for producing the fabric of the thermal-moisture-expansion yarn for thermal management comprises the steps of weaving the thermal-moisture-expansion yarn on a machine after the process of channel winding and warping, and carrying out the thermal-moisture treatment process on the grey cloth after the weaving, wherein the thermal-moisture treatment process is to continuously treat the grey cloth in an open width state through a steam box according to three areas, namely, the temperature of the area I is 78-82 ℃, the relative humidity is 88-92%, the running speed is 23-28m/min, the time is 30-50 seconds, the temperature of the area II is 90-94 ℃, the relative humidity is 95-99%, the running speed is 20-25m/min, the time is 40-60 seconds, the temperature of the area III is 100-108 ℃, the relative humidity is 80-87%, the running speed is 25-30m/min, the time is 20-40 seconds, and the grey cloth immediately enters a drying unit after being taken out of the box, and is dried for 60-120 seconds at 80-100 ℃ to obtain the thermal-moisture-expansion yarn fabric.
10. The method according to claim 8 or 9, wherein the weaving is performed on an air jet loom using a 1x 1 plain weave structure, wherein the warp density is set to 150-200 yarns/10 cm, the weft density is set to 140-180 yarns/10 cm, the tension of the loom is controlled to 150-200N, and the vehicle speed is 400-600r/min.

Description

Thermal-wet-swelling yarn for thermal management and production method of fabric of thermal-wet-swelling yarn Technical Field The invention relates to the technical field of functional textile materials, in particular to a thermal-wet-swelling yarn for thermal management and a production method of a fabric of the thermal-wet-swelling yarn. Background The acrylic short fiber has a superior form similar to natural wool, has high bulk and excellent heat insulation effect, and is often used as a first-choice outer cladding fiber material for heat management textiles. However, in the process of weaving and wearing friction, the ends of the short fibers of the acrylic fiber are easy to slip and draw out from the main body of the yarn, and the free hairiness has certain strength and is not easy to break and fall off, so that the acrylic fiber fabric faces extremely serious fuzzing and pilling problems. In the prior art, in order to improve the warmth retention property or the fuzzing and pilling resistance property of the acrylic fiber, two main modes are adopted in the industry, namely, a chemical modification method (such as increasing micropores on the surface of the fiber and using a fuzzing and pilling resistance resin coating for surface bonding and curing) and a traditional high-count high-density physical spinning technology (such as increasing yarn twist and using a compact spinning technology to forcedly press fuzzes in the yarn). The conventional thinking is in a physical contradiction which cannot be reconciled, the yarn must keep a static air layer to ensure good warmth retention, but the hairiness slipping pilling is aggravated, the yarn must be twisted and compacted or chemically hardened to resist pilling, and the fabric is hardened, the porosity cliff is reduced, and the excellent warmth retention is thoroughly lost. In order to solve the problems, a plurality of technical researches are made in the industry, the first category is related published literature on the prior anti-pilling blending modification of the acrylic staple fibers, and the related published literature suggests that the pilling of the acrylic fibers is inhibited by hot melt bonding or chemical agent crosslinking, but the method has the defects that yarns are seriously hardened, the hand feeling is hard, and the original softness and three-dimensional fluffy thermal property of the acrylic fibers are seriously damaged. The publication patent CN121204846A discloses a preparation method and a device for the gradient-section shrinkage polyester slub yarn, which realize the programmed control of the shrinkage of different sections of polyester filaments through a hot roller process, but has the defects that the technology is only limited to the morphological processing of the pure chemical fiber filaments, and the technology is not involved in how to apply the structure to composite spinning to solve the difficult problems of coating and stabilizing of outer short fibers which are extremely easy to pill. The research and development of the jet vortex spinning composite slub yarn (Shang Longshi et al) published in the journal of cotton spinning technology discusses the process of preparing the composite yarn by using vortex spinning with a slub yarn as a core yarn and short fibers as a coating layer, but has the defect that the research is only stopped at shallow exploration of the influence of mechanical parameters (such as air pressure and tension) of a spinning machine on the appearance of a sliver, and the microcomputer theory of reversely fastening easily-pilled outer hairiness by using the section shrinkage expansion variable of the core yarn after the core yarn encounters damp and heat is completely not considered. In summary, the prior art still has the key problems of the following urgent needs to be overcome, namely, firstly, the prior conventional composite core spun yarn only realizes the sheath-core lamination wrapping with a simple mechanical layer, the outer short fibers cannot establish deep physical engagement with the core layer framework, so that the surface fabric is extremely easy to slip and fuzzing once being rubbed, secondly, the prior multicomponent spinning technology lacks an active internal dynamic fastening mechanism, the core yarn and the outer fibers cannot be spontaneously excited by a hot and humid environment to generate strong bidirectional shrinkage and radial extrusion stress in the subsequent working procedure, so that the fiber tail ends cannot be locked from physical sources, and thirdly, a novel production process of the hot and humid expansion yarn and the surface fabric thereof is urgently needed in the industry, so that the perfect compromise of the functionality and the durability of the taking is realized. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a production method of a thermal-wet-swelling yarn for thermal management and a fabric ther